DTC Advanced Diagnostics: P0962
DTC P0962:CVT Drive Pulley Pressure Control Valve Circuit Low

General Description


The CVT drive pulley pressure control solenoid valve controls hydraulic pressure to the drive pulley. The CVT drive pulley pressure control solenoid valve is controlled by duty cycle output. The spool in the CVT drive pulley pressure control solenoid valve moves the valve according to the current, and produces hydraulic pressure in proportion to the current. The powertrain control module (PCM) measures the current that passes through the CVT drive pulley pressure control solenoid valve and uses feedback control to compensate for the difference between the measured current and the commanded one. If the measured current is not equal to the duty cycle command, the PCM detects a malfunction (open, short to ground) and stores a DTC.

Monitor Execution, Sequence, Duration, DTC Type
Execution
Continuous
Sequence
None
Duration
1 second or more
DTC Type
One drive cycle, MIL on, Shift position indicator blinks

Enable Conditions
Condition
Minimum
Maximum
12 volt battery voltage
[BATTERY VOLTAGE]
10.0 V
–
[ ]: HDS Parameter

Malfunction Threshold
The measured current for the PCM’s command value is as specified here for at least 1 second.

Duty (%)
Current (A)
Failure mode
57.9 - 92.3
Less than 0.19
Low Input
More than 92.4
Less than 0.27
Low Input

Possible Cause
NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
CVT drive pulley pressure control solenoid valve DR LS line open (includes connector loose connection or disconnection)
CVT drive pulley pressure control solenoid valve DR LS line short to ground
CVT drive pulley pressure control solenoid valve internal circuit open
CVT drive pulley pressure control solenoid valve internal circuit short
PCM internal circuit failure

Confirmation Procedure
Operating Condition
Start the engine, and wait for at least 1 second.

With the HDS
None.

Diagnosis Details
Conditions for setting the DTC
When a malfunction is detected, the MIL comes on, the shift position indicator blinks, and a Pending DTC, a Confirmed DTC, and the freeze data are stored in the PCM memory.

Conditions for clearing the DTC
The shift position indicator comes off by turning the vehicle to the OFF (LOCK) mode. The MIL is cleared if the malfunction does not return in three consecutive trips in which the diagnostic runs. The MIL, the Pending DTC, the Confirmed DTC, and the freeze data can be cleared with the scan tool Clear command or by disconnecting the 12 volt battery.